Authors: Pierre Baudry MarieAnne Dourges René Pailler
Publish Date: 2009/07/01
Volume: 44, Issue: 14, Pages: 3643-3651
Abstract
The transformation during pyrolysis of excellulose carbon fibres/phenolic matrix 2D composites is investigated The amount and the dimensions of pores and microcracks created after heat treatment are characterized and described from 600 °C resin pyrolysed matrix to 1000 °C carbonized matrix Characterization of samples was performed using mercury intrusion porosimetry at different stages of thermal treatment Three different composites were prepared in order to study the influence of fibre surface properties and the role of carbon filler addition in matrix on the porosity emergence Interlaminar shear strengths of these materials were recorded On the investigated materials the lowest fibre/matrix bonding is found to preserve material cohesion by promoting interfacial debonding and thus limiting consequences of shrinkage during matrix carbonization
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